From bestselling author Neal Stephenson and critically acclaimed historical and contemporary commercial novelist Nicole Galland comes a captivating and complex near-future thriller that questions the very foundations of the modern world. 1851 EnglandThe Great Exhibition at London's Crystal Palace has opened, celebrating the rise of technology and commerce. With it the power of magic – in decline since the industrial revolution began – is completely snuffed out. The existence of magic begins its gradual devolution into mere myth.

21st Century AmericaMagic has faded from the minds of mankind, until an encounter between Melisande Stokes, linguistics expert at Harvard, and Tristan Lyons, shadowy agent of government, leads to the uncovering of a distant past.After translating a series of ancient texts, Melisande and Tristan discover the connection between science, magic and time travel and so the Department of Diachronic Operations – D.O.D.O. – is hastily brought into existence. Its mission: to develop a device that will send their agents back to the past, where they can stop magic from disappearing and alter the course of history.

But when you interfere with the past, there's no telling what you might find in your future…